21031938 (number)

21031938 is an even 8-digits composite number following 21031937 and preceding 21031939. In scientific notation, it is written as 2.1031938 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 6991800 positive integers (up to 21031938) that are relatively prime to 21031938.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand nine hundred thirty-eight

Notation

Scientific notation 2.1031938 × 10^7
Engineering notation 2.1031938 × 10^6

Prime Factorization of 21031938

Prime Factorization 2 × 9 × 431 × 2711

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21031938
Product of the distinct prime numbers

The prime factorization of 21031938 is 2 × 9 × 431 × 2711. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 2, 99, 66, 159, 66, 7530, 3076, 28038, 3089, 838329, 732817, 5739152, 3011789, 5292478, 40552504, 368805780, 581816930, 177208942, 9904517762

Basic calculations (n = 21031938)

Multiplication

n×y
n×2 42063876
n×3 63095814
n×4 84127752
n×5 105159690

Division

n÷y
n÷2 10515969
n÷3 7010646
n÷3 5257984.5
n÷5 4206387.6

Exponentiation

ny
n2 442342416035844
n3 9.3033182688361E+21
n4 1.9566681302443E+29
n5 4.1152522801874E+36

Nth Root

y√n
2√n 4586.0590925107
3√n 276.03221111142
4√n 67.720448112152
5√n 29.14579182218

Divisors of 21031938

1, 2, 9, 18, 431, 862, 2711, 3879, 5422, 7758, 24399, 48798, 1168441, 2336882, 10515969, 21031938

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21031937
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031938 can be divided by 16 positive divisors. The sum of these divisors (counting 21031938) is 1, the average is 0.0625.

Base conversion 21031938

Base System Value
2 Binary 1010000001110110000000010
3 Ternary 1110120112101200
4 Quaternary 1100032300002
5 Quinary 20341010223
6 Senary 2030442030
8 Octal 120166002
10 Decimal 21031938
12 Duodecimal 7063316
16 Hexadecimal 140ec02
20 Vigesimal 6b8jgi
36 Base36 cisci

Cryptographic Hash Functions

md5 2b65ff8d1d81379ade5e9b1ba1fcfe36
sha1 97fe4fd99c305ed0ca03f0f11c7897acf7fc5453
sha256 4f96022d477ad251090ce43d44f02b5c61b0cfdc7feb8be27682521ca2e0134d
sha512 b0615fec6b035d94782d9a4c96daa2bbd9cd4a8375846e8db99556643c79cf04cdbf3cc04bd96ccd9141a9776fee88437337b2c4391589a1e4c6fdc195220ac4
ripemd-160 035e067426baf84ce1979464053f9d90015b2ba0

21031938 as geometric shapes

Circle

Radius = n
Diameter 42063876
Circumference 132147563.82311
Area 1.3896596845894E+15

Sphere

Radius = n
Volume 3.8969648436511E+22
Surface area 5.5586387383575E+15
Circumference 132147563.82311

Square

Length = n
Perimeter 84127752
Area 442342416035844
Diagonal 29743651.96259

Cube

Length = n
Surface area 2654054496215064
Volume 9.3033182688361E+21
Space diagonal 36428385.197639

Equilateral Triangle

Length = n
Perimeter 63095814
Area 1.9153988472921E+14
Altitude 18214192.598819

Triangular Pyramid

Length = n
Surface area 1.9153988472921E+14
Volume 1.0964065725718E+21
Height 9914550.6541967